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. 2020 May 27;405(4):451–460. doi: 10.1007/s00423-020-01896-x

Fig. 4.

Fig. 4

Postoperative complications in relation to preoperative diagnosis. The indication for surgery (group I: preoperative non-malignant diagnosis, group II: preoperative malignant diagnosis) did not significantly influence the occurrence of postoperative complications. Abbreviations: RR R-risk ratio, OR odds ratio, CI 95%-confidence interval